Patents by Inventor Christophe Duvallet

Christophe Duvallet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Antivibration sleeve and a motor vehicle including such a sleeve
    Patent number: 6729611
    Abstract: An antivibration sleeve comprising an inner strength member which extends longitudinally along a central axis, a rigid annular strength member surrounding the inner strength member, and an elastomer body which interconnects the two strength members. The strength members have respective wedge-shaped bearing zones placed in register with each other to compress the elastomer body when the antivibration sleeve is supporting a static axial load. The bearing zones of the annular strength member enabling passages to be formed between two hydraulic chambers defined by the elastomer body.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: May 4, 2004
    Assignee: Hutchinson
    Inventors: Alain Deschaume, Ali Medjani, Christophe Duvallet, André Girard
  • Antivibration sleeve and a motor vehicle including such a sleeve
    Publication number: 20020093170
    Abstract: An antivibration sleeve comprising an inner strength member which extends longitudinally along a central axis, a rigid annular strength member surrounding the inner strength member, and an elastomer body which interconnects the two strength members. The strength members have respective wedge-shaped bearing zones placed in register with each other to compress the elastomer body when the antivibration sleeve is supporting a static axial load. The bearing zones of the annular strength member enabling passages to be formed between two hydraulic chambers defined by the elastomer body.
    Type: Application
    Filed: December 20, 2001
    Publication date: July 18, 2002
    Inventors: Alain Deschaume, Ali Medjani, Christophe Duvallet, Andre Girard